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Chemistry11
MoleConversionPracticeAvogadro’sNumber,MolarMass,MolarVolume
Name:Date:Block:
1. Howmanyatomsarein2moleculesofHg(IO3)2?2. WhatvolumeatSTPisoccupiedby1.45x1030moleculesofCOF2gas?3. Howmanymoleculesaretherein64.0gofFeS?4. Howmanymolesarein25.0mLofHCNatSTP?5. WhatvolumeatSTPisoccupiedby43.5gofClF3?6. Howmanymolesarein2.75x1023atomsofFe?7. Howmanymoleculesaretherein125mLofNOClatSTP?
1.18atoms2.5.39x107L3.4.38x1023molecules4.1.12x10-3mol5.10.5L6.0.457moles7.3.36x1021molecules
Chemistry11
MolarityPracticeName:Date:Block:
1. Howmanygramsofmagnesiumcyanideareneededtomake275mLofa0.075Msolution?
2. Whatisthemolarityofasolutionmadewhen52gramsofpotassiumsulfateisaddedto4100mLofwater?
3. Findthevolumeofa0.75Msolutionifitcontains39gramsofpotassiumhydroxide.
4. Howmanygramsofhydrochloricacidarepresentin3.0Lofa0.750Msolution?
5. Explainhowyouwouldmake675mLofa0.400Mbariumiodidesolution.
6. 200.0gofNaClaredissolvedin100.mLofwater.Calculatethemolarityofthesolution.
7. HowmanygramsofAgClarerequiredtoprepare150.0mLof0.200Msolution?
8. Whatistheconcentrationthatresultswhen184.7gofpotassiumchromateisdissolvedinenoughwatertomakea500.0mLsolution?
1.1.6g2.0.073M3.0.93L4.82g5.Dissolve106gBaI2in675mLwater6.34.2M7.4.30g8.1.902M
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